busybox

ash: trivial shrink by using smaller int

function                                             old     new   delta
copynode                                             197     196      -1
calcsize                                             127     126      -1
nodesize                                              54      27     -27
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(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-29)             Total: -29 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>